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Water Science & Technology Vol 48 No 11 pp 193–198 © IWA Publishing 2004

Low cost anaerobic system for Indonesia: single baffled septic tank

G. Wibisono*, K. Mathew** and Goen Ho***

*Faculty of Engineering Merdeka University, Jl.Taman Agung No.1 Malang, Indonesia
**Environmental Technology Centre, Murdoch University, Murdoch, WA 6150, Australia
***Environmental Technology Centre, Murdoch University, Murdoch, WA 6150, Australia (E-mail: g.ho@murdoch.edu.au)


ABSTRACT
The insertion of a single baffle into a laboratory septic tank to mix incoming feed with sludge has been shown to improve anaerobic degradation of the feed. This is particularly true of soluble organic matter such as glucose. Oil or cellulose fed separately does not undergo degradation. It is expected however that a balanced feed such as sewage will be better degraded.

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